Quoted from chill:WPT in excellent condition should be doable around $2000 - $2400. Plus an alternate translite for about $90.
If you have space for only one pin, I would go for WPT too! (and the alternative translite...)
If you can accomodate two... I have seen a thread where someone could buy Stargate + Terminator 2 for less than $2500. That would be tempting. Or one DMD + earlier SS.
Endless possibilities...